... modeDTMF Sip Info, DTMF Relay, RFC2833Support PPPoE, (used for ADSL, cable modem connecting) VLAN(802.1P 802.1Q)Support DMZ, DNS Relay ... clientWeb administration, telnet configuration and keypad operationSupport HTTP, FTP, TFTP software upgrade or configure.Hotline,Alarm clockSpeed dial Phone book(140 ...